baber/WOPTO huggingface dataset:
Patent GB-227904-A (GB)
Title: Improvements in or relating to gramophones and like sound reproducing instruments
IPC: G11B25/04
Filed: 1923-10-22
Abstract: 227,904. Roberts, S. C. H. Oct. 22, 1923. Cases with internal horns; tonearm joints.-In a gramophone or the like in which the tone-arm branches off to separate horns above and below the record, the upper and lower horns communicate directly with the opposite ends of a vertical standard in which the tone-arm is pivotally supported. The invention is shown as applied to a machine having a horn 5 formed in the lid of the casing, as described in Specification 185,455, a horn 38 being provided in addition in a space below the turntable. The inlet openings of both horns register with the ends of a vertical standard 10 mounted on a plate 21 in the casing, and forming bearings for a T-piece 14 at the end of the tone-arm, as shown in Fig. 4. The inlet orifice 6 of the horn in the lid moves awav from the tone-arm outlet when the lid is opened, Fig. 1, and forms a tight joint with a rubber &c. ring 30 on the top of the standard 10 when the lid is closed. Both horns are preferably provided at their mouths with adjustable flaps 42, 23. Two or more horns may be provided above as well as below the record, each being connected by a branch pipe to the tone-arm.
Patent GB-1127595-A (GB)
Title: Trigger circuits
Inventor: MILES DENNIS JOHN
IPC: H03K3/2893
Filed: 1965-06-23
Abstract: 1,127,595. Transistor bi-stable circuits. MINISTER OF TECHNOLOGY. 22 June, 1966 [23 June, 1965; 17 March, 1966], Nos. 26563/65 and 11683/66. Heading H3T. In a bi-stable circuit having transistors Q1, Q2 of the same conductivity type connected as a long tailed pair and the base of a common emitter connected transistor Q3 of opposite conductivity type connected to the collector load resistance R2 of the transistor Q2, the collector of the transistor Q3 is connected to an output means and a resistive potential divider R3, R4 is connected between the output means and a power supply, and a tapping on the potential divider is connected to the base of the transistor Q2 such that the circuit is responsive in its first state to a voltage above a threshold value to switch to its second state and is then responsive to a voltage below a second threshold value to switch itself into its first state. As shown the output means consists of transistors Q4, Q5 but alternatively the output and the resistor R4 may be taken directly from the collector resistor R5 of the transistor Q3. In the bi-stable circuit shown, assuming transistors Q1 and Q5 are ON and transistors Q2, Q3 and Q4 are OFF, a negative going input at 1 causes the circuit to change state so that transistors Q2, Q3 and Q4 turn ON and transistors Q1 and Q5 turn OFF. This changes the voltage at the base of the transistor Q2 so that a different voltage level input signal is then required to change the circuit back to its initial state. By using symmetrical supply voltages, the voltages at the output 4 and at the base of the transistor Q2 can be made equal and opposite for the two states of the circuit. Variable resistors R6 and R7 can be used to adjust these voltages and so vary the voltages at which the circuit triggers. The circuit may be manufactured in a microminiature form. Also the conductivity of each transistor may be changed for one of the opposite type.
Patent GB-1499950-A (GB)
Title: Cooled gas turbine engine flame tube
IPC: F23R3/06
Filed: 1976-06-25
Abstract: 1499950 Gas turbine combustion chamber CATERPILLAR TRACTOR CO 25 June 1976 [25 Aug 1975] 26631/76 Heading F1L Air dilution holes in the flame tube of a gas turbine combustion chamber are formed in four sizes, namely, first upstream holes 26, second downstream holes 28, third intermediate holes 30, and fourth holes 32 with three holes 32 centered about each hole 30, the third holes being arranged at the position of maximum chamber temperature. The flame tube may be of ceramic material, e.g. silicon carbide or silicon nitride.
Patent GB-900902-A (GB)
Title: Improvements in and relating to the construction of dome-shaped or curved building structures
IPC: E04B7/10
Filed: 1959-08-05
Abstract: 900,902. Domed and curved building structures; metal building frames and joints. CARTER, S. H. Oct. 27, 1960 [Aug. 5, 1959], No. 26681/59. Classes 20 (2) and 20 (4). [Also in Group XXI] A framework for dome-shaped or curved building structures comprises straight or curved elongated connecting-members, each member having at least one end portion jointed to the end portion of at least one other member by the provision of a pair of securing plates at the jointed end portions, the end portions of the respective connecting-members being clamped between the pair of securing plates and being located therein by a locating pin passing right through at least one plate of the pair, the arrangement being such that the framework is of dome or curved shape. In Figs. 2 and 3 the framework of a domed roof structure is built up from straight inverted T-sectioned bars 3 arranged to define triangular spaces 11 to receive correspondingly shaped panels of glass, metal, wood, fibre-glass, thermal insulating material or the like, the bars 3 being connected together at their ends by pairs of dished metal plates 1, 2, clamped by a nut 8 and bolt 9 on opposite faces of the base of the inverted T section, the upper plate being slotted at 6 to receive the vertical ribs 7 of the T-section, and the lower plate being formed with holes 4 to receive pins 5 depending from the ends of the bars 3. A modified construction, Figs. 4-6 (not shown) comprises bars arranged to define hexagonal spaces, the bars being tubular and flattened at each end where they are formed with a hole to receive a locating-pin on the upper connecting plate, such an arrangement being adaptable to support polythene sheeting forming a protective cover for a building under erection. In the embodiment of Fig. 8, concrete reinforcing bars 43 have cranked ends 44 which are clamped between the plates 41, 42 by a bolt 48 which carries spacers and nuts 52, 53 for spacing and securing shuttering (not shown). The bars may be of wood, and in one embodiment, Fig. 9 (not shown), spaced inner and outer domed wooden frames are assembled to form a double skin structure. In another embodiment wooden bars 83, Fig. 11, are arranged to define square spaces and are clamped at their ends between dished plates 81, 82, the upper plate 81 being slotted at 86 to receive ribs 87 on the bars 83 whilst the lower plate 82 is apertured at 84 to receive pins 85 depending from plates 85a secured beneath the bars 83, the frame so formed being upwardly concave and lined with galvanized steel panels to constitute a water catchment bowl, Fig. 13, feeding a tank 93 or a reservoir. The invention is applicable to arched structures for passageways &c. An outer protective cap, Fig. 15 (not shown), may be provided over the outer securing plate 1. The securing plates may be flat and the bars curved. The members 111, Fig. 16, pivoted to base-plates 110, may be used for connecting the frame to the ground or to a building structure.
Patent GB-539352-A (GB)
Title: Method for preventing the disagreeable odour occurring in the cooking of sea fish
IPC: A23L5/10
Filed: 1938-09-14
Abstract: 539,352. Food preparations. FALTICZEK, F. S. Sept. 14, 1938, Nos. 26791 and 26792. Convention dates, Sept. 27, 1937 and Nov. 22, 1937. [Class 49] To prevent disagreeable odours in the cooking of sea fish, a pulp prepared from apples or other fruit rich in malic acid is added to the water, oil or fat in which the fish is cooked. The pulp used may be that prepared from apples and tomatoes as described in Specification 539,381.
Patent GB-1211428-A (GB)
Title: Improvements in or relating to tri-dimensional lattice structure electrodes for electrochemical processes and a process for the manufacture thereof
Inventor: DAVOLIO GIOVANNI
IPC: H01M4/64
Filed: 1968-06-05
Abstract: 1,211,428. Electrodes; supports for active materials. G. MANTEGAZZINI. 5 June, 1968 [19 June, 1967], No. 26870/68. Heading H1B. [Also in Division C7] A tridimentional lattice or reticulate structure electrode, for an acid or alkaline storage cell, a primary or fuel cell, or an electrolysis cell operating with gas evolution and preferably forced circulation of electrolyte through the electrode, comprises an assembly of metallized carbonaceous filaments interconnected to form a plurality of cells open at all faces. The electrode is made by preparing a carbonaceous support by pyrolysis, e.g. at between 500<SP>‹</SP> and 800‹ C., and subsequent controlled combustion, e.g. at between 700‹ and 1000‹ C. in an oxidizing atmosphere, of cellular plastics material, e.g. expanded polyurethane resin, and electrodepositing on the support a metal, e.g. Ni, Cu, Cd, Pb, Pt, Ag or Zn. A nickel electrode for an electrolysis cell is prepared by immersing the carbonaceous lattice, pressed between plates of a frame, in a Watts' bath. The metallized carbonaceous lattice may be impregnated with nickel salts for producing a positive electrode for an alkaline storage cell. The metallized lattice may be associated with a catalyst, e.g. a Pt group metal.
Patent GB-796092-A (GB)
Title: Improvements in and relating to electric gaseous discharge devices, to methods of coating the envelopes of such devices, to coatings of luminescent material on supports therefor and to coating suspensions including luminescent material
IPC: C09K11/02
Filed: 1954-09-16
Abstract: 796,092. Luminescent materials: discharge lamps. SYLVANIA ELECTRIC PRODUCTS, Inc. Sept. 16, 1954 [Sept. 25, 1953], No. 26916/54. Class 39(1). A coating suspension, particularly for fluorescent lamps, comprises a powdered inorganic fluorescent material, preferably having a particle size of about 6 micron, suspended in a vehicle, and between 0À1 and 2À0 per cent by weight, of superfine high-purity powdered alumina having an average particle size of about 0À02 micron for increasing the adhesion of the fluorescent material. The fluorescent material may be calcium halophosphate activated by antimony and manganese as described in Specification 691,127, calcium silicate activated by lead and manganese or zinc silicate activated by manganese. The suspension vehicle can be a mixture of primary amines known as Armeen CD, ethyl cellulose, dibutyl phthalate, xylol and butanol, the proportions of which are stated, which is afterwards removed by baking. Coated lamp tubes can be subjected to a " blow " test comprising threading a nozzle into the tube, connecting the nozzle to a source of compressed air through a pressure regulator, and increasing the air pressure from about 1 in. mercury until a clear spot on the wall of the tube is developed.
Patent GB-1473641-A (GB)
Title: Digital encoders for phase shift keyed systems
IPC: H04L27/18
Filed: 1974-06-06
Abstract: 1473641 Data transmission; coding for PSK systems POST OFFICE 6 June 1974 [6 June 1973] 26977/73 Heading H4P A coder, for a PSK system, particularly twin plex 4 phase differential, has means for adjusting voltage levels of dual input data, also providing clock pulses with which the data is synchronized. Synchronized data is stored for one clock interval then passed through binary addition circuitry, to provide a modulo-4 sum in Gray code on at least two pairs of complemented outputs.  Input binary stream A is amplitude clipped by OR/NOR gate G1 giving complemented outputs to clocked flip-flop FF1, and similarly with stream B with respect to FF2 which feeds through NOR gates G4-G13 further clocked flip-flops FF3, FF4, outputs from which are fed back, after one clock interval to gates G10, G11 the arrangement providing a mod-4 sum in Gray code. All flip-flops are clocked by pulses C through OR gate G3 hence information at FF1-FF4 is delayed for one clock interval, and therein synchronized with clock pulses. A logical analysis is given in the Specification. The arrangement, as applied to a PSK system is stated to enable demodulation to be performed without a reference carrier. OR/NOR gates can be replaced AND/NAND gates if all inputs are connected together.
Patent GB-1452555-A (GB)
Title: Tube pressure filters
IPC: C04B33/22
Filed: 1972-10-05
Abstract: 1452555 Preparing refractory material ENGLISH CLAYS LOVERING POCHIN & CO Ltd 1 Oct 1973 [5 Oct 1972] 27042/74 Addition to 1240466 Heading B1D [Also in Division C1] A method of preparation of a refractory material comprises de-watering an aqueous suspension of a solid material at a pressure greater than 700 p.s.i.g. in a tube pressure filter e.g. as claimed in Specification 1240465 by a process as claimed in Specification 1240466 and calcining the product to form the refractory material. The pressure may be greater than 1500 p.s.i.g. The raw material may be an alumino silicate e.g. kaolin, alumina, a hydroxide or carbonate e.g. of Al, Mg, Ca, Zr or Be, dolomite or a magnesium aluminate spinel.
Patent GB-1101612-A (GB)
Title: Nitric acid oxidation of cycloalkanols and cycloalkanones to alkanedioic acids
IPC: C07C45/53
Filed: 1965-03-02
Abstract: Alkanedioic acids are prepared by oxidizing a feed comprising a cycloalkanone or cycloalkanol (the ring being at least C8), with 60-80 wt. per cent HNO3 in presence of an HNO3 oxidation catalyst at 35-100 DEG  C., the feed: HNO3 mole ratio being 1:2-30, the feed being added incrementally to the HNO3. Examples describe the production of suberic, sebacic and dodecanedioic acids, as the main products, from cyclooctane, cyclodecane and cyclododecane, respectively.
Patent GB-1099410-A (GB)
Title: 6-fluoro-16ª‡-methyl-í¸-pregnadien-17ª‡-ol-3,20-dione and the 17-esters thereof anda process for their manufacture
IPC: C07J5/00
Filed: 1965-06-25
Abstract: Novel compounds of the general formula <FORM:1099410/C2/1> in which R represents a hydrogen atom or an acyl radical, are obtained in a process wherein a 16a  - methyl - D 4 - pregnen - 17a  - ol - 3,20 - dione or a 17-ester thereof containing an oxirane ring in 6,7-position is reacted with hydrogen fluoride to effect splitting of the oxirane ring and introduction of fluorine in 6-position, water is split off with formation of a double bond in 6,7-position, and, if desired, a product containing a free 17-hydroxyl group is esterified.
Patent GB-381707-A (GB)
Title: Improvements in magnetos
IPC: H02K21/18
Filed: 1931-09-29
Abstract: 381,707. Lubricating magnetos. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.-(Wico Electric Co. ; Phelon Avenue, West Spring- field, Massachusetts, U.S.A.) Sept. 29, 1931, No. 27139. [Class 12 (iii).] The gear wheels and bearings for the rotor, interrupter and distributer of a magneto are lubricated automatically from an oil reservoir 73, preferably containing felt or other absorbent. A disc 76 mounted on the driving shaft 45 for the interrupter and distributer bears against the oil-saturated felt, and carries oil to a fixed wiper 77, whence it passes to a groove 75 in the upper surface of a fixed stud 40 on which the rotor is mounted. A second groove 79, in the lower surface of the stud, carries a wick 80 which collects excess oil and conducts it back to the reservoir. The bearing 51 for the shaft 45 receives oil from the groove 75 through holes 81. To prevent escape of oil at the inner end of the sleeve 33 carrying the rotor, the sleeve is provided with a groove tending to throw oil off into a collector 84 whence it passes to the reservoir. For lubricating the distributer bearing, a recess containing a mass of felt &c. 86 is provided in the supporting frame 38 adjacent the gear wheel 53 carrying the distributer arm. The gear wheel 53 is mounted on a stud 55 having a groove into which a wick 88 extends from the felt 86. This felt is initially soaked with oil, and its oil supply is replenished by oil carried up from the reservoir 73 by the disc 76 and gear wheel 53. To prevent escape of oil into the interrupter casing 71, the hub of the interrupter cam 46 is grooved to throw off any oil which may creep along it into a collector 63. Escape of oil into the distributer casing is prevented by the closed outer end of the hub 54 and by making the opening in the member 57, through which the hub passes, slightly conical to receive a washer which is pressed against a large felt washer 93 on the face of the gear wheel 53. The bearing 98 for the driving shaft 99 of the magneto is lubricated by supplying oil from a reservoir 105 through a wick to a groove in the bearing.
Patent GB-1011822-A (GB)
Title: Improvements relating to methods of feeding materials and to screw conveyors
Inventor: RASMUSSEN ENOK
IPC: B24C7/00
Filed: 1962-07-16
Abstract: 1,011,822. Screw conveyers; feeds to pneumatic conveyers. F. L. SMIDTH & CO. A/S. July 16, 1962, No. 27262/62. Heading B8A. Granular material is fed from an inlet 5 to an outlet 6 at a different pressure (e.g. one leading to a pneumatic conveyer or grinder) by the use of a two-banded screw 2 which feeds material toward the outlet and also compacts the material to form an air seal in a region between the inlet and the outlet. The section 7 of the screw is of such hand as to feed material to the right of the diagram and the section 8 is of the opposite hand and so causes the material to be compacted, the excess being pushed up into the compartment 13. Eventually, the free surface 10 of the material in the compartment will attain a slope of such steepness that material will fall away and can be conveyed to the outlet. In the form shown it is conveyed by a further screw section 9, but this may be omitted if the outlet lies directly below the end 11 of the compartment. There may be a plurality of inlets and/or outlets each sealed from the others during feeding by the action of a reversely feeding screw section 8 surmounted by a compartment 13. Each outlet must be unobstructed in use, but this does not exclude the provision of an outlet valve provided that in the open position such valve does not obstruct the outlet. Specification 699,962 is referred to.
Patent GB-1370215-A (GB)
Title: Extensible perforate floor mat and friction device
IPC: A47G27/02
Filed: 1972-06-12
Abstract: 1370215 Mats M KESSLER 12 June 1972 [28 June 1971] 27272/72 Heading A4S Mat sections 2, 3, 4, Fig. 1 providing a perforated frictional surface for walking upon or for preventing slipping of a car wheel, each consist of a first series of parallel plastics top strips 6 injection moulded integrally with a second, transverse series of more widely spaced parallel bottom strips 9, 9a, 9b, the mat sections 2, 4 being detachably secured together at adjacent side edges by latching links 12 each of which is integral at one end 13 with a strip 6a of the mat section 2, has a neck portion 14 extending under the strip 6b of the mat section 4, and has a latching member 16 which extends upwards between strips 6b and 6c of the mat section 4, the member 16 being forced between and overlying bottom strips 9c, 9d of the mat section 4. Extensions 9', 9a', of the strips 9, 9a space the adjacent side edges of the mat sections. A separate latching link for use where the integral link is removed in cut down sections has a latching member at each end which fits between the two outermost top strips of adjacent mat sections. The mat sections 2, 3 are detachably joined along adjacent end edges by joining pieces 20 which have a link bar 22 and end tabs 24, 25 which underlie adjacent strips 6 in the two sections. Filler strips 26, Fig. 5 with end tabs 26' 28' underlying adjacent strips 6 are inserted between appropriate strips 6 to form a pattern or design and a ramped edge 32 Fig. 9 is connected to a side or end of the mat by connecting links which engage in a space between a strip 38, connected to the main body 40 of the ramped edge, and the main body, and in spaces between strips 6 of the adjacent mat section: The upper surfaces of the strips 6 are corrugated or dimpled to increase friction and the under surface of the strips 9 cut away to aid drainage.
Patent GB-708669-A (GB)
Title: Improvements in or relating to lubricant compositions
IPC: C10M169/00
Filed: 1951-11-22
Abstract: Isopropenyl acetate is copolymerized with equimolar amounts of an ester or a mixture of esters of one or more, a , b -unsaturated polycarboxylic acids or anhydrides and one or more primary alcohols having 8 to 20 carbon atoms, in the presence of a peroxide type catalyst at elevated temperature and in the absence of air.  Suitable acids are maleic, itaconic, fumaric citraconic, mesaconic and aconitic, and the alcohols include octyl, nonyl, decyl, lauroyl, palmityl, and myristyl, branched chain "oxo" alcohols and alcohols such as "Lorol" (R.T.M.) B alcohol obtained by the hydrogenation of coconut oil.  Bulk or emulsion polymerization techniques and a "redox" system may be used with catalysts such as hydrogen, benzoyl and lauroyl peroxides, cumene, urea, and t-butyl hydroperoxides, potassium and ammonium persulphates, and t-butyl perbenzoate.  The reaction may be modified by the presence of an excess of alcohol, a low M.W. aldehyde such as propionaldehyde or sulphuric or toluene sulphonic acid.  In a further modification the isopropenyl acetate is copolymerized with the acid and the resulting copolymer esterified with the alcohol.  An example describes the copolymerization of isopropenyl acetate with a fumaric acid ester of an alcohol obtained from the hydrogenation of coconut oil using a benzoyl peroxide catalyst.  Mineral oils containing 0.005 per cent. to 80 per cent. by weight of the copolymer have improved pour-depressant properties and viscosity index.ALSO:Lubricating oil compositions having improved pour depressant properties and viscosity index comprise a mineral oil containing from 0.005 per cent. to 80 per cent. by weight of a copolymer of isopropenyl acetate with equimolar amounts of an ester or a mixture of esters produced by reacting one or more a; b -unsaturated polycarbonylic acids or anhydrides with one or more primary alcohols having 8 to 20 carbon atoms.  Suitable acids are maleic, fumaric, itaconic, citraconic, mesaconic and aconitic acids, and the alcohols include octyl, nonyl, decyl, lauryl, palmityl and myristyl, branched hain 'oxo' alcohols and alcohols such as "Lorol B" alcohol ("Lorol" is a Registered Trade Mark), obtained by the hydrogenation of coconut oil.  In an example, the addition of a copolymer of isopropenyl acetate and a fumaric acid ester of alcohols obtained by the hydrogenation of coconut oil to mid-continent or naphthenic base stocks is described.  Other additives, such as other pour depressors, V.I. improvers, detergents, oxidation inhibitors, oiliness agents and E.P. agents may also be included.
Patent GB-1506344-A (GB)
Title: Process and apparatus for burning waste material from printing works
IPC: F23G7/00
Filed: 1976-07-01
Abstract: 1506344 Burning viscous waste DEUTSCHE BABCOCK AG 1 July 1976 [4 July 1975] 27460/76 Heading F4B Viscous waste from a processing plant is fed into a container 3 in which it is heated so that its viscosity is reduced. A gas pressure is applied to the container through a connection 7 and this conveys the waste through the duct 8 to the central feed pipe 16 of an atomizer lance 9. An atomizing agent such as water vapour or air is fed through a duct 17 and intermixes with the waste so that the mixture is atomized on passage through the nozzle 15. The arising mist 20 is blown into the burner flame 21 of a boiler and is completely burnt. In a modified arrangement the lance 9 may be positioned in the middle of a ring burner (22), Fig. 3 (not shown).
Patent GB-1385486-A (GB)
Title: Rolling mill
IPC: B21B13/06
Filed: 1971-06-11
Abstract: 1385486 Rolling mills DAVY LOEWY Ltd 5 June 1972 [11 June 1971] 27475/71 Heading B3M A vertical rolling mill has rolls 5, 6 which can be vertically removed from the mill by passing them in turn between a pair of gear-boxes 14, the rolls being driven via pivoted spindles 13, the gear-boxes 14 containing spur gearing, vertical shafts 17, and a common lower horizontal shaft 15. Each roll is supported in a housing 7 or 8 which is adjustable by screws 9 and balanced by hydraulic rams 10.